Bolt including a cleaning thread point tip

Abstract

A fastener has a head and a shank with two ends. One of the ends includes the head while the other includes a pilot point. Also, the shank includes a threaded portion adjacent to the pilot point. A pair of recesses are formed 180° from one another on the point and threaded portion. The recesses extend from the end of the point through at least a first full thread.

I claim: 
     
       1. A method of manufacturing a fastener comprising: providing a blank having a head and an unthreaded shank;   positioning said blank into die means;   forming a tip and at least one recess in said tip and shank; and   forming threads on said shank adjacent said tip such that said at least one recess extends from said tip through at least a first full thread.   
     
     
       2. The method of forming a fastener according to claim 1, further comprising forming said at least one recess to have an overall rectangular shape. 
     
     
       3. The method of forming a fastener according to claim 1, further comprising forming said at least one recess in said shank and tip with a uniform depth. 
     
     
       4. The method of forming a fastener according to claim 1, further comprising forming said at least one recess following a contour of the unthreaded shank and tip. 
     
     
       5. The method of forming a fastener according to claim 1, wherein said at least one recess has a width with a size equal to about 20% to 33% of a diameter of said shank. 
     
     
       6. The method of forming a fastener according to claim 1, further comprising forming a pair of recesses in said tip and shank. 
     
     
       7. The method of forming a fastener according to claim 1, further comprising simultaneously forming said tip and at least one recess in said unthreaded shank.